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Gnoma [55]
3 years ago
11

3х + Зу = 27 x — Зу = -11 Solving using elimination?

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
5 0

Step-by-step explanation:

<h2>x=4</h2>

y=5

..................

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3(-4n - 9) = 21 plc solve ​
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<h3>Answer:</h3>

\huge{\boxed{n=-4}}

<h3>Explanation:</h3>

\begin{array}{cc}\begin{flushright}\text{Divide both sides of the equation by 3.}\end{flushright}&\begin{flushleft}-4n-9=7\end{flushleft}\\\begin{flushright}\text{Add 9 on both sides.}\end{flushright}&\begin{flushleft}-4n=16\end{flushleft}\\\begin{flushright}\text{Divide both sides by -4.}\end{flushrigh}&n=-4\end{array}

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